Except for speed, your nervous system is most similar to A-A metro bus that makes many stops along its route
B-an air trip where you take multiple planes to get to your destination
C-A cruise ship that makes a circular route back home to port
D-a race car speeding down a track, making pit stops occasionally

the answer is a) a shiprock was formed by igneous process

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.